Convert Celsius, Fahrenheit, Kelvin and Rankine.
| °C | °F |
|---|---|
| 1 | 33.8 |
| 5 | 41 |
| 10 | 50 |
| 25 | 77 |
| 50 | 122 |
| 100 | 212 |
| 1000 | 1,832 |
| °F | °C |
|---|---|
| 1 | -17.222222 |
| 5 | -15 |
| 10 | -12.222222 |
| 25 | -3.8888889 |
| 50 | 10 |
| 100 | 37.777778 |
| 1000 | 537.77778 |
| °C | K |
|---|---|
| 1 | 274.15 |
| 5 | 278.15 |
| 10 | 283.15 |
| 25 | 298.15 |
| 50 | 323.15 |
| 100 | 373.15 |
| 1000 | 1,273.15 |
| K | °C |
|---|---|
| 1 | -272.15 |
| 5 | -268.15 |
| 10 | -263.15 |
| 25 | -248.15 |
| 50 | -223.15 |
| 100 | -173.15 |
| 1000 | 726.85 |
Temperature scales do not share a common zero, so converting them takes more than a single multiplier. This converter applies the correct offset and scale for Celsius, Fahrenheit, Kelvin and Rankine, and it warns you if a value falls below absolute zero.
Cooking with a foreign recipe? Pair this with the weight converter and volume converter.
Convert oven temperatures from °F to °C (350 °F is about 177 °C) when following recipes from another country.
Understand forecasts abroad: 30 °C is 86 °F, and 0 °C is 32 °F, the freezing point of water.
Use Kelvin for gas laws and thermodynamics, and Rankine for some US engineering calculations.
Water freezes at 0 °C (32 °F, 273.15 K) and boils at 100 °C (212 °F, 373.15 K) at standard atmospheric pressure. The two scales agree at −40 degrees.
Absolute zero is 0 K, −273.15 °C or −459.67 °F. No temperature can be lower, so values below it are flagged.
Multiply the Celsius value by 9/5 (1.8) and add 32. For example, 25 °C × 1.8 + 32 = 77 °F.
Subtract 32 from the Fahrenheit value, then multiply by 5/9. For example, (98.6 − 32) × 5/9 = 37 °C.
Both scales have the same degree size, but Kelvin starts at absolute zero. To convert, add 273.15 to Celsius. Kelvin is written without a degree symbol.
They are equal at −40 degrees: −40 °C is exactly −40 °F.